feat: set_hostname — update /etc/hostname, /etc/hosts, cert, Postfix
Implements set_hostname on ProxmoxSystemMixin: 1. Writes /etc/hostname (short name, base64-safe transfer) 2. Replaces old hostname in /etc/hosts via Python regex + base64 3. Updates /etc/mailname if present 4. Updates Postfix myhostname via postconf -e if installed 5. Applies hostname immediately at runtime via hostname(1) 6. Regenerates Proxmox node TLS certificate via pvecm updatecerts -f (falls back to pvenode cert create → pveproxy restart) Accepts bare hostname or FQDN. A reboot is required for the Proxmox node name to update in the web UI / cluster — the driver logs this. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian Manivong
co-authored by
Claude Sonnet 4.6
Claude Sonnet 4.6
parent
d1e6931ec5
commit
b1ba991e6d
@@ -0,0 +1,226 @@
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# Copyright 2025 The NetOrk Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Interface-related NAPALM getters for Proxmox VE nodes."""
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from __future__ import annotations
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import logging
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from typing import Any
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from napalm_proxmox import utils
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logger = logging.getLogger(__name__)
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_JsonDict = dict[str, Any]
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class ProxmoxInterfaceMixin:
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"""Mixin providing interface-related NAPALM getters."""
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def get_interfaces(self) -> dict[str, _JsonDict]:
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"""Return a dict of interfaces keyed by interface name."""
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result: dict[str, _JsonDict] = {}
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for iface in self._get_node_network():
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name = iface.get("iface", "")
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if not name:
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continue
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active = iface.get("active", 0)
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autostart = iface.get("autostart", 0)
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result[name] = {
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"is_up": bool(active),
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"is_enabled": bool(autostart) or bool(active),
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"description": iface.get("comments", "").strip(),
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"last_flapped": -1.0,
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"speed": utils.speed_mbps(iface),
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"mtu": int(iface.get("mtu") or 1500),
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"mac_address": utils.normalize_mac(iface.get("hwaddr", "")),
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}
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return result
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def get_interfaces_ip(self) -> dict[str, _JsonDict]:
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"""Return IP addresses per interface."""
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result: dict[str, _JsonDict] = {}
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for iface in self._get_node_network():
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name = iface.get("iface", "")
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if not name:
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continue
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addrs = utils.addresses_from_node_network(iface)
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if addrs:
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result[name] = addrs
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for vnet in self._get_sdn_vnets():
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vnet_id = vnet.get("vnet", "")
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if not vnet_id:
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continue
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for subnet in self._get_sdn_subnets(vnet_id):
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cidr = subnet.get("cidr", "")
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gateway = subnet.get("gateway", "")
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if gateway and cidr:
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ip, plen = utils.parse_cidr(cidr)
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if "." in gateway:
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result.setdefault(vnet_id, {}).setdefault("ipv4", {})[gateway] = {
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"prefix_length": plen
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}
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else:
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result.setdefault(vnet_id, {}).setdefault("ipv6", {})[gateway] = {
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"prefix_length": plen
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}
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return result
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def get_interfaces_counters(self) -> dict[str, _JsonDict]:
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"""Return per-interface traffic counters."""
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result: dict[str, _JsonDict] = {}
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try:
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rrd_data = self._node_api().netstat.get() or []
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except Exception as exc:
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logger.debug("Failed to fetch netstat counters: %s", exc)
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rrd_data = []
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latest: dict[str, _JsonDict] = {}
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for entry in rrd_data:
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iface = entry.get("dev", "")
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if iface:
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latest[iface] = entry
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for iface, data in latest.items():
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result[iface] = {
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"tx_errors": int(data.get("tx_errs", 0) or 0),
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"rx_errors": int(data.get("rx_errs", 0) or 0),
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"tx_discards": int(data.get("tx_drop", 0) or 0),
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"rx_discards": int(data.get("rx_drop", 0) or 0),
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"tx_octets": int(data.get("tx_bytes", 0) or 0),
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"rx_octets": int(data.get("rx_bytes", 0) or 0),
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"tx_unicast_packets": int(data.get("tx_packets", 0) or 0),
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"rx_unicast_packets": int(data.get("rx_packets", 0) or 0),
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"tx_multicast_packets": 0,
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"rx_multicast_packets": 0,
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"tx_broadcast_packets": 0,
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"rx_broadcast_packets": 0,
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}
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return result
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def get_arp_table(self, vrf: str = "") -> list[_JsonDict]:
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"""Return ARP table.
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Proxmox does not expose ARP via the REST API directly. We attempt
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to read it via the node's ``/proc/net/arp`` through the Proxmox
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exec endpoint. If that is unavailable, an empty list is returned.
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"""
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raw = self._exec_ssh_command("cat /proc/net/arp")
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if not raw:
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return []
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entries = []
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for line in raw.splitlines():
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line = line.strip()
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if not line or line.startswith("IP"):
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continue
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parts = line.split()
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if len(parts) < 6:
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continue
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ip_addr, _, flags, mac, _, iface = (
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parts[0], parts[1], parts[2], parts[3], parts[4], parts[5]
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)
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if mac in ("00:00:00:00:00:00", ""):
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continue
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if vrf and iface != vrf:
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continue
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entries.append(
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{
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"interface": iface,
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"mac": utils.normalize_mac(mac),
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"ip": ip_addr,
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"age": -1.0,
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}
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)
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return entries
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def get_mac_address_table(self) -> list[_JsonDict]:
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"""Return MAC address table from Linux bridges and OVS bridges."""
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result: list[_JsonDict] = []
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network = self._get_node_network()
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linux_bridges = [
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iface["iface"]
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for iface in network
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if iface.get("type") in ("bridge",) and iface.get("iface")
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]
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for bridge in linux_bridges:
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raw = self._exec_ssh_command(
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f"bridge fdb show br {bridge} 2>/dev/null || true"
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)
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for line in raw.splitlines():
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parts = line.split()
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if len(parts) < 3:
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continue
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mac_str = parts[0]
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if not re.match(r"([0-9a-f]{2}:){5}[0-9a-f]{2}", mac_str):
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continue
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dev = ""
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vlan_id = 1
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for i, tok in enumerate(parts):
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if tok == "dev" and i + 1 < len(parts):
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dev = parts[i + 1]
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if tok == "vlan" and i + 1 < len(parts):
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try:
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vlan_id = int(parts[i + 1])
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except ValueError:
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pass
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result.append(
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{
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"mac": utils.normalize_mac(mac_str),
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"interface": dev or bridge,
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"vlan": vlan_id,
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"static": "permanent" in line,
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"active": True,
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"moves": 0,
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"last_move": 0.0,
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}
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)
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ovs_bridges = [
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iface["iface"]
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for iface in network
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if iface.get("type") in ("OVSBridge",) and iface.get("iface")
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]
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for bridge in ovs_bridges:
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raw = self._exec_ssh_command(
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f"ovs-appctl fdb/show {bridge} 2>/dev/null || true"
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)
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for line in raw.splitlines():
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parts = line.split()
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if len(parts) < 4:
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continue
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try:
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_port = int(parts[0])
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vlan_id = int(parts[1])
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mac_str = parts[2]
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except (ValueError, IndexError):
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continue
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result.append(
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{
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"mac": utils.normalize_mac(mac_str),
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"interface": bridge,
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"vlan": vlan_id,
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"static": False,
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"active": True,
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"moves": 0,
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"last_move": 0.0,
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}
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)
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return result
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